DE1560219C2 - Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems - Google Patents
Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systemsInfo
- Publication number
- DE1560219C2 DE1560219C2 DE1560219A DEF0049195A DE1560219C2 DE 1560219 C2 DE1560219 C2 DE 1560219C2 DE 1560219 A DE1560219 A DE 1560219A DE F0049195 A DEF0049195 A DE F0049195A DE 1560219 C2 DE1560219 C2 DE 1560219C2
- Authority
- DE
- Germany
- Prior art keywords
- spinning machine
- synthetic rubber
- wound
- drafting systems
- aprons
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
In Spinnmaschinen-Streckwerken werden heute Oberwalzenbezüge und Spinnriemchen mit Ausnahme von Unterriemchen fast ausschließlich aus synthetischem Gummi verwendet, da man diese aus synthetischem Material in gleichbleibender Qualität und mit genauen Abmessungen herstellen kann. Obwohl die Entwicklung entsprechenden synthetischen Gummis sehr weit fortgeschritten ist, kommt es vor, daß infolge gewisser, meist klimatisch bedingter Umstände die Bezüge zum »Wickeln« neigen, d. h., es werden einzelne Fasern aus dem Faserverband herausgelöst, die sich auf dem Walzenbezug sammeln und im weiteren Verlauf einen Walzenwickel aus guten Fasern bilden. Auch bei einem Fadenbruch werden häufig die Fasern um den Walzenbezug herumgewickelt.In spinning machine drafting systems, top roll covers and spinning aprons are used today with the exception of Unterriemchen almost exclusively made of synthetic rubber, since these are made of synthetic Can produce material of consistent quality and with precise dimensions. Although the Development of corresponding synthetic rubbers is very advanced, it happens that as a result Certain, mostly climatic conditions, the covers tend to "wrap", d. i.e., there will be individual ones Fibers detached from the fiber structure, which collect on the roller cover and in the further course make a roll of good fibers. Even if the thread breaks, the fibers are often around the Roller cover wrapped around.
Die Wickelbildung hat man bislang auf verschiedene Weise bekämpft. So hat man die Gummioberfläche rauh gemacht; z. B.'durch Einmischen geeigneter Füllstoffe (deutsche Patentschrift 9 63 313). Bei einem anderen Verfahren wird die Oberfläche mit UV-Licht bestrahlt (österreichische Patentschrift 1 96 286).So far, lap formation has been combated in a number of ways. So you have the rubber surface rough made; z. B. 'by mixing in suitable fillers (German patent 9 63 313). With another In the process, the surface is irradiated with UV light (Austrian patent specification 1 96 286).
Vielfach wird die Gummioberfläche mit LackThe rubber surface is often coated with varnish
in bestrichen, was aber zeitraubend und wegen der kurzen Lebensdauer des Lackfilmes auch kostspielig ist (deutsche Patentschrift 17 752). Ein Nachbehandeln der Oberfläche mit verschiedenen gelösten Chemikalien hatte bislang nicht den gewünschten Erfolg.in coated, which is time consuming and because of the short Lifespan of the paint film is also expensive (German patent 17 752). Post-treatment of the Surface with various dissolved chemicals has so far not had the desired success.
π Es wurde nun gefunden, daß man das gefürchtete Wickeln auf Walzenbezügen und Riemchen aus synthetischem Gummi bei Spinnmaschinen-Streckwerken vermeiden kann, wenn man auf die Oberfläche derartiger Walzen und Riemchen Isocyanate allein aufbringt. Zu diesem Zweck löst man ein Isocyanat allein z. B/ in einem organischen Lösungsmittel und bestreicht dann die Oberfläche der Walzenbezüge oder der Riemchen mit dieser Lösung. Es ist jedoch auch möglich, das Isocyanat allein dampfförmig auf die Oberfläche der Walzenbezüge oder Riemchen aufzubringen. Besonders geeignet istTri-(isocyanato-phenyl)-thio-Phosphat. π It has now been found that you can do the dreaded winding on roller covers and straps synthetic rubber in spinning machine drafting systems can be avoided if one on the surface such rollers and aprons applies isocyanates alone. An isocyanate is dissolved for this purpose alone z. B / in an organic solvent and then spreads the surface of the roll covers or the brick with this solution. However, it is also possible to use the isocyanate alone in vapor form To apply the surface of the roll covers or aprons. Tri (isocyanato-phenyl) -thio-phosphate is particularly suitable.
Man fügt zu 30 Volumenteilen einer 20prozentigen Lösung von Tri-(isocyanato-phenyl)-thio-Phosphat (Handelsname Desmodur RF) in Methylenchlorid noch 70 Volumenteile wasserfreies Chlorbenzol. Diese Lösung wird auf die Walzenbezüge aufgepinselt. Nach dem Trocknen ist die Oberfläche derart verändert, daß die gefürchtete Wickelbildung nicht mehr auftritt.One adds to 30 parts by volume of a 20 percent solution of tri- (isocyanato-phenyl) -thio-phosphate (Trade name Desmodur RF) still 70 parts by volume of anhydrous chlorobenzene in methylene chloride. These Solution is brushed onto the roller covers. After drying, the surface is changed in such a way that the dreaded lap formation no longer occurs.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1560219A DE1560219C2 (en) | 1966-05-13 | 1966-05-13 | Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1560219A DE1560219C2 (en) | 1966-05-13 | 1966-05-13 | Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1560219B1 DE1560219B1 (en) | 1972-06-29 |
DE1560219C2 true DE1560219C2 (en) | 1979-08-23 |
Family
ID=7102811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1560219A Expired DE1560219C2 (en) | 1966-05-13 | 1966-05-13 | Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1560219C2 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE17752C (en) * | 1900-01-01 | J. B. WILLIAM in Sultz i. Elsafs | Coating on the rollers of the drafting devices of spinning machines | |
DE910221C (en) * | 1940-05-04 | 1954-04-29 | Bayer Ag | Process for the production of shaped masses |
DE888971C (en) * | 1943-08-18 | 1953-09-07 | Bayer Ag | Pressure cylinder for the spinning of fully synthetic fibers |
DE900186C (en) * | 1950-10-20 | 1953-12-21 | Globus Gummi & Asbestwerk Gmbh | Material for elastic and plastic parts of textile machines, especially for the pressure roller covers and aprons of the drafting systems of spinning machines |
DE872398C (en) * | 1951-12-02 | 1953-03-30 | Bayer Ag | Process for the production of everyday objects made of various elastic products in a layer structure |
DE905829C (en) * | 1952-05-20 | 1954-03-08 | Continental Gummi Werke Ag | Process for the production of spinning slips, knitted pants or the like. |
US2837775A (en) * | 1952-07-19 | 1958-06-10 | Dayton Rubber Company | Textile cot |
AT196286B (en) * | 1956-01-18 | 1958-03-10 | Semperit Ag | Process for the treatment of pressure roller covers for spinning machines |
FR1414577A (en) * | 1964-11-24 | 1965-10-15 | Gummi Und Asbestwerke Gesellch | One or more layers spinning unit for a spinning machine |
-
1966
- 1966-05-13 DE DE1560219A patent/DE1560219C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1560219B1 (en) | 1972-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C2 | Grant after previous publication (2nd publication) |